原集群myid修改

原集群myid配置为ceph1 myid（1），ceph2 myid（2），ceph3 myid（3），需要修改为ceph1 myid（80），ceph2 myid（90），ceph3 myid（100）。

1. 找到leader节点

   每个节点分别执行/opt/apache-zookeeper-3.6.3-bin-bcm/bin/zkServer.sh status确认leader节点。（以ceph3是leader为例）

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   [root@ceph3 bin]# /opt/apache-zookeeper-3.6.3-bin-bcm/bin/zkServer.sh status ZooKeeper JMX enabled by default Using config: /opt/apache-zookeeper-3.6.3-bin-bcm/bin/../conf/zoo.cfg Client port found: 2182. Client address: localhost. Client SSL: false. Mode: leader [root@ceph1 bin]# /opt/apache-zookeeper-3.6.3-bin-bcm/bin/zkServer.sh status ZooKeeper JMX enabled by default Using config: /opt/apache-zookeeper-3.6.3-bin-bcm/bin/../conf/zoo.cfg Client port found: 2182. Client address: localhost. Client SSL: false. Mode: follower [root@ceph2 bin]# /opt/apache-zookeeper-3.6.3-bin-bcm/bin/zkServer.sh status ZooKeeper JMX enabled by default Using config: /opt/apache-zookeeper-3.6.3-bin/bin-bcm/../conf/zoo.cfg Client port found: 2182. Client address: localhost. Client SSL: false. Mode: follower

2. 修改按照ceph1 myid（80），ceph2 myid（90），ceph3 myid（100）修改对应节点的myid

   ceph1：

   1	echo 80 > /opt/apache-zookeeper-3.6.3-bin-bcm/zkData/myid

   ceph2：

   1	echo 90 > /opt/apache-zookeeper-3.6.3-bin-bcm/zkData/myid

   ceph3：

   1	echo 100 > /opt/apache-zookeeper-3.6.3-bin-bcm/zkData/myid

3. 修改每个节点的/opt/apache-zookeeper-3.6.3-bin-bcm/conf/zoo.cfg中的集群节点配置信息

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   server.80=ceph1:2889:3889;2182 server.90=ceph2:2889:3889;2182 server.100=ceph3:2889:3889;2182

4. 按leader节点最后重启，其余节点按myid从小到大的顺序重启原则，重启各节点的zkserver

   ceph1（follower）：

   1	/opt/apache-zookeeper-3.6.3-bin-bcm/bin/zkServer.sh restart

   ceph2（follower）：

   1	/opt/apache-zookeeper-3.6.3-bin-bcm/bin/zkServer.sh restart

   ceph3（leader）：

   1	/opt/apache-zookeeper-3.6.3-bin-bcm/bin/zkServer.sh restart

5. 每个节点分别执行/opt/apache-zookeeper-3.6.3-bin-bcm/bin/zkServer.sh status确认原集群状态

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   [root@ceph3 bin]# /opt/apache-zookeeper-3.6.3-bin-bcm/bin/zkServer.sh status ZooKeeper JMX enabled by default Using config: /opt/apache-zookeeper-3.6.3-bin-bcm/bin/../conf/zoo.cfg Client port found: 2182. Client address: localhost. Client SSL: false. Mode: follower [root@ceph1 bin]# /opt/apache-zookeeper-3.6.3-bin-bcm/bin/zkServer.sh status ZooKeeper JMX enabled by default Using config: /opt/apache-zookeeper-3.6.3-bin-bcm/bin/../conf/zoo.cfg Client port found: 2182. Client address: localhost. Client SSL: false. Mode: follower [root@ceph2 bin]# /opt/apache-zookeeper-3.6.3-bin-bcm/bin/zkServer.sh status ZooKeeper JMX enabled by default Using config: /opt/apache-zookeeper-3.6.3-bin-bcm/bin/../conf/zoo.cfg Client port found: 2182. Client address: localhost. Client SSL: false. Mode: leader